Barcelona is a major city located on the northeastern coast of Spain and serves as the capital of Catalonia. It is the second-most populous municipality in Spain with a city population of 1.6 million, and an urban area extending to approximately 5.3 million residents. This makes it the fifth most populous urban area within the European Union. Geographically, Barcelona is situated along the Mediterranean Sea, nestled between the Llobregat and Besòs rivers, and bordered by the Serra de Collserola mountain range to the west, marking it as one of the Mediterranean's largest metropolises.
In 1882 the Museum of Natural Sciences of Barcelona was founded under the name of "Museo Martorell de Arqueología y Ciencias Naturales".
In 1900, Barcelona had a population of 533,000.
In 1900, almost a third (28.9 percent) of the population were children (aged younger than 14 years).
From 1920 to 2010, the Laboratori de Natura operated at the Castle of the Three Dragons as the Zoology Museum.
From 1924 to 2010, the Martorell Museum was open to the public as a geology museum.
In 1929, Barcelona hosted the Barcelona International Exposition (Expo 1929).
In 1929, Mies van der Rohe designed the Barcelona Pavilion for the International Exposition for Germany, symbolizing modern architecture.
In 1930, less than a year after its construction, the Barcelona Pavilion was torn down.
The Historical Botanical Garden of Barcelona was founded in 1930.
In 1936, Barcelona became the capital of Revolutionary Catalonia during the Spanish Revolution.
On January 26, 1939, Barcelona fell, causing a mass exodus of civilians fleeing to the French border, marking a significant moment in the Spanish Civil War.
In 1939, Barcelona was captured by the fascists during the Spanish Civil War.
The Barcelona Museum of Contemporary Art focuses on Catalan and Spanish art from 1945 onwards.
Catalan modernista architecture developed between 1885 and 1950, leaving a significant architectural legacy in Barcelona.
In 1950, Barcelona began absorbing a high number of people from other less-industrialized parts of Spain.
In 1957, the EADA Business School was founded, becoming the first Barcelona institution to run manager training programmes for the business community.
In 1960, a first version of the Municipal Law was passed.
The Can Framis Museum focused on post-1960 Catalan Art owned by Fundació Vila Casas.
In 1975, the death of Franco brought on a period of democratization throughout Spain.
On September 11, 1977, over a million people demonstrated in Barcelona, calling for the restoration of Catalan autonomy.
In 1979, Barcelona's population peaked at 1,906,998.
In 1986, Spain joined the European Community, which helped Barcelona's development.
In 1986, a modern re-creation of the Barcelona Pavilion by Spanish architects was constructed in Barcelona.
In 1987, an ETA car bombing at Hipercor killed 21 people.
Since 1987, the city has been divided into 10 administrative districts.
In 1990, Barcelona had 1.7 million tourists.
Barcelona hosted the 1992 Summer Olympics.
In 1992, Barcelona hosted the Summer Olympics, driving major changes in the city's infrastructure and international perception.
In 1992, Barcelona hosted the Summer Olympics, enhancing its reputation as a major tourist destination.
In 1992, Barcelona hosted the Summer Olympics, leading to the restructuring and opening of several city beaches after the demolition of industrial buildings.
In 1992, Barcelona was the host city of the Summer Olympics, promoting urban regeneration and increasing its international reputation.
In 1992, the publicly owned Estadi Olímpic Lluís Companys was used for the Olympics.
In 1996, 3.9% of Barcelona's population was born outside of Spain.
As of 1997, the Barcelona metropolitan area contained 67% of the total number of industrial establishments in Catalonia.
In 1999, Barcelona won the RIBA Royal Gold Medal for its architecture, marking the first time the award was given to a city rather than an individual architect.
In 1999, the Barcelona Symphony and Catalonia National Orchestra (OBC) inaugurated its new venue in the brand-new Auditorium (L'Auditori).
The Botanical Garden of Barcelona was founded in 1999.
Barcelona's cultural roots go back 2000 years.
In 2000, Barcelona's population hit a low of 1,496,266 residents.
Starting in the summer of 2000, Barcelona hosted the Bread & Butter urban fashion fair.
The Port of Barcelona has a 2000-year-old history.
In 2001, 22.5% of Barcelona's population was born outside of Spain.
Since 2001, Barcelona's population increased due to a new wave of immigration.
In 2002, Diagonal Mar Park was inaugurated in Barcelona, covering 13.3 ha.
According to Eurostat, Barcelona city had a very high GDP of €80,894 per head in 2004.
In 2004, Barcelona hosted the Universal Forum of Cultures and the World Urban Forum.
The 2004 Universal Forum of Cultures left Barcelona with a large concrete bathing zone on the eastern coastline.
In March 2006, the current version of Barcelona's Municipal Law was approved, organizing the city council and giving the local government a special relationship with the central government.
In 2006, CosmoCaixa, a science museum in Barcelona, received the European Museum of the Year Award.
In March 2007, Barcelona's City Council initiated the Bicing service, a bicycle-sharing program designed as public transport, allowing users with a card to rent bikes from numerous stations across the city.
After the May 2007 election, the ERC did not renew the coalition agreement and the PSC governed in a minority coalition with ICV as the junior partner.
In 2007, most of the inhabitants stated they are Roman Catholic.
In 2008 the RENFE's AVE high-speed rail system was extended from Madrid to Barcelona.
In 2008, Barcelona's city council calculated the population to be 1,621,090, resulting in an average population density of 15,926 inhabitants per square kilometre.
On 17 June 2009, a new terminal (T1) at Barcelona-El Prat Airport entered service.
From 2009, The Brandery, an urban fashion show, was held in Barcelona twice a year.
In 2009, FC Barcelona won six trophies in a calendar year, winning the sextuple.
In 2009, the Catalan Education Act stipulated that the language of instruction at public schools and escoles concertades is Catalan.
In 2009, the greater Barcelona metropolitan area had a GDP amounting to $177 billion.
In 2009, the organizers of the Bread & Butter urban fashion fair announced it would be returning to Berlin.
From 1924 to 2010, the Martorell Museum was open to the public as a geology museum.
In March 2010, the Barcelona Marathon had over 10,000 participants.
On 22 May 2011, CiU gained a plurality of seats at the municipal election, winning 15 seats.
In 2011, Barcelona was the 20th-most-visited city in the world by international visitors, with 5.5 million.
In 2011, the Museum of Natural Sciences ended up with a merge of five institutions
In a 2011 survey conducted by InfoCatólica, 49.5% of Barcelona residents of all ages identified themselves as Catholic.
In 2012, the Brandery, an urban fashion show, held its last show in Barcelona.
Barcelona was the host city for the 2013 World Aquatics Championships, which were held at the Palau San Jordi.
In 2013, 3.6 million pleasure cruise passengers used the Port of Barcelona.
In 2013, a shared RENFE-SNCF high-speed rail connecting Barcelona and France (Paris, Marseille and Toulouse, through Perpignan–Barcelona high-speed rail line) was launched.
In 2013, according to the linguistic census held by the Government of Catalonia, Spanish was the most spoken language in Barcelona.
In 2013, the FC Barcelona Museum attracted 1.51 million visitors, making it the third most popular tourist attraction in Catalonia.
In 2013, the Port of Barcelona had a trade volume of 1.72 million TEU's.
In 2014, 322,698 people in the province of Barcelona identified as Muslim, making up 5.6% of the total population.
In 2014, Barcelona was recognized as the Southern European City of the Future by FDi Magazine.
As of 2015, Barcelona remained the only city to have won the RIBA Royal Gold Medal for its architecture.
As of 2015, the planned completion date for the Sagrada Família was set for 2026.
By 2015, Prague and Milan had more international visitors than Barcelona.
In 2015, Barcelona became part of the UNESCO Creative Cities Network as a City of Literature.
In 2015, Barcelona was named the seventh most important fashion capital of the world, according to the Global Language Monitor's annual ranking.
In 2015, Barcelona was the 24th most "livable city" in the world according to Monocle.
As of 1 January 2016, Barcelona's city population was 1,608,746 people.
As of March 2016, Barcelona has 519 hotels including 35 five-star hotels.
According to Business Insider, Barcelona was considered the 15th safest city in the world in 2016.
In 2016, about 59% of Barcelona's inhabitants were born in Catalonia, and 18.5% came from the rest of Spain.
In May 2017, Barcelona was listed among the "Eight Places That Hate Tourists the Most" by The Independent, with Mayor Ada Colau expressing concerns about the city becoming a "cheap souvenir shop". The city began moderating tourism by halting new hotel licenses and fining AirBnb.
On August 17, 2017, a van attack on La Rambla resulted in 14 deaths and numerous injuries, claimed as a jihadist attack.
In 2017, the portion of people aged 65 and older made up 21.5% of the population.
In early 2017, over 150,000 protesters expressed concerns that tourism was destabilizing the city, leading to slogans like "Tourists go home" and increasing rental housing costs for residents.
In 2018, Barcelona-El Prat Airport handled more than 50.17 million passengers.
In 2019, a survey by Centro de Investigaciones Sociológicas showed that 53.2% of residents in Barcelona identified themselves as Catholic.
According to the Global Wealth and Lifestyle Report, Barcelona was one of the most affordable cities in the world for a luxury lifestyle in 2020.
In 2020, FC Bayern Munich won six trophies in a calendar year, winning the sextuple.
In July 2023, Barcelona was announced as the UNESCO-UIA World Capital of Architecture for the 2024-2026 term.
In 2024, Barcelona will begin its term as the UNESCO-UIA World Capital of Architecture, a role it will hold through 2026.
As of 2015, completion of the Sagrada Família was planned for 2026.
In 2026, Barcelona will host the UIA World Congress of Architects, in its role as the UNESCO-UIA World Capital of Architecture.